Question

OADVANCED MATERIAL Interpreting a Born-Haber cycle This thermodynamic cycle describes the formation of an ionic compound M X2 from a metal element M and nonmetal element X in their standard states. Use it to answer the questions in the table below. 2+ 1100 1000 900 2- 800--- 700 600 M (8)+2X) 500. enthalpy 400 (kJ/mol) 300. M (g) + X, (g) 200 ▼ | 700,- 600 M (g) + 2x (g 500 enthalpy 400. 300. м (е) + x, (g) 200 100. м (s) + X2(g) 0. -100. 200. м Х, (s) DANCED MATERIAL Interpreting a Born-Haber cycle -200. MX What is the lattice enthalpy of MX2? kJ/mol kJ/mol More stable. What is the formation enthalpy of M X2? Suppose both the X-X bond enthalpy and the heat of sublimation of M were smaller. Would MX2 be more stable? Or less? O Less stable. It is impossible to tell without more information

Answer 1

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